Method for enhancing engine power has many kinds, but with equal power, the cost of pure NA (naturally aspirated) modification is definitely double use pressurization system, and the greater the power loss must be more low-speed torque, speed is also bound to be pulled up. In addition, NA can reach the limit can not be increased to Turbo (turbo) so high, so the booster system can be said to be the best power boost scheme. So, how should owners choose their own models turbochargers it? I interviewed on the issue of Taiwan modification expert, Mr. Xie Zonghuan Evil brand director. Because nowadays a commercial vehicle to take account of running accuracy, fuel consumption, durability, and many other considerations, the turbine capacity, boost the value or A / R value (A is Aera abbreviated "area", referring to the turbine exhaust side entrance narrowest cross-sectional area, R value is Radius "Radius" the acronym refers to the narrowest cross-sectional area of the entrance to the center of the distance to the center of the turbine body, the ratio between the two is the A / R value.) aspect often use more conservative setting, so we modified the viewpoint, the original Turbo (turbocharger) and of course there is another upgrade their space.
And during the installation or upgrade Turbo, many people will feel confused, in the end is to choose to play the power of Turbo, or to choose good reaction low speed torque-type Turbo scenic 1.5 dci turbocharger will be able to play it? In fact, the internal volume size, but with all kinds of different features to turbine design, while the engine of course also have their own characteristics, single-convex and bi-convex on its own strengths. Should consider when selecting a turbine engine design which, in addition to displacement is also very important. For example, the device on a large displacement engine torque type of small capacity turbo, although it has the advantages of good low rpm response, Turbo appeared very fast results, but the capacity is quickly filled with an instant speed has been reached the highest point, is also difficult to increase the pressure up, and therefore to the large high-emission energy transfer area, pressure limit has been reached, no further increase in the engine air intake air, this time to it and then power up a notch with the engine speed It is very reluctantly. Certainly can not expect to be able to output high power, this is a small negative point of the turbine.
Conversely, if you want high-speed turbine to generate power began to play a role in the body to increase the volume of the turbine is to enhance the quickest way to boost the amount of wind. However, the greater the capacity of the turbine, although capable of more air into the cylinder, but the power required for driving the turbine must be relatively increased. That is, the greater the capacity to drive a turbine and make full advantage of supercharging effect, the engine Renault clio dci turbocharger itself will have to have greater displacement. But if you use large turbines in small displacement car, then in a low speed range small amount of engine emissions, rate of rotation of the turbine itself can not be improved relatively, pressure values are also difficult to raise up. So as long as the rotational speed of the blades go down, it is difficult to quickly come up again, which will form the most serious shortcomings of turbine Turbo Leg (turbo lag).
http://tuningpart.smartlog.dk/benz-introduced-the-new-g-series-models-post1508689
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